Download Evaluates: MAX1391–MAX1396 MAX1396 Evaluation Kit General Description Features

19-3992; Rev 0; 2/06
MAX1396 Evaluation Kit
The MAX1396 evaluation kit (EV kit) is a fully assembled
and tested PC board that evaluates the MAX1396 2channel, single-ended, 12-bit, SAR ADC. The EV kit
also includes Windows ® 98 SE/2000/XP-compatible
software, which provides a simple graphical user interface (GUI) for exercising the MAX1396’s features.
The EV kit comes with the MAX1396ETB installed.
The MAX1396 EV kit can also be used to evaluate
the MAX1391–MAX1395. Order free samples of
MAX1391ETB, MAX1392ETB, MAX1393ETB, MAX1394ETB,
and MAX1395ETB through Maxim’s website to evaluate
these parts.
Features
♦ 2-Channel, Single-Ended Inputs
♦ External +1.5V to +3.6V Supply
♦ On-Board Supply: +1.54V (VCC)
♦ On-Board Reference: +1.54V (VCC)
♦ External Reference: +0.6V to VCC
♦ USB Connection
♦ USB Powered
♦ Proven PC Board Layout
♦ Windows 98 SE/2000/XP-Compatible Evaluation
Software
♦ Fully Assembled and Tested
Ordering Information
PART
MAX1396EVKIT
TYPE
INTERFACE
EV kit
USB/SPI™ 3-wire
Component List
DESIGNATION QTY
C1, C2
C3, C9, C10,
C12–C15, C20,
C21, C23, C26,
C29–C32
C4, C5
C6
C7, C8
C11, C22
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
2
0.22µF ±10%, 16V X7R ceramic
capacitors (0603)
TDK C1608X7R1C224K
C16–C19, C24,
C25,
C27, C28
8
1µF ±10%, 10V X7R ceramic
capacitors (0603)
TDK C1608X7R1C105K
J1
1
15
100nF ±10%, 16V X7R ceramic
capacitors (0603)
TDK C1608X7R1C104K
USB series B right-angle PC mount
receptacle connector
J2
0
Not installed
JU1–JU7
7
3-pin headers
L1
1
Ferrite bead (0603)
TDK MMZ1608R301A
2
10pF ±5%, 50V C0G ceramic
capacitors (0603)
TDK C1608C0G1H100J
1
33nF ±10%, 10V X7R ceramic
capacitor (0603)
TDK C1608X7R1H333K
2
2
22pF ±5%, 50V C0G ceramic
capacitors (0603)
TDK C1608C0G1H220J
10µF ±10%, 10V X5R ceramic
capacitors (1210)
TDK C3225X5R1A106K
LED1
1
Red LED (0603)
R1, R2
2
5.1Ω ±5% resistors (0603)
R3
1
220Ω ±5% resistor (0603)
R4
1
2.2kΩ ±5% resistor (0603)
R5
1
1.5kΩ ±5% resistor (0603)
R6, R7
2
27Ω ±5% resistors (0603)
R8
1
470Ω ±5% resistor (0603)
R9
1
100kΩ ±5% resistor (0603)
R10
1
7.5kΩ ±1% resistor (0603)
Windows is a registered trademark of Microsoft Corp.
SPI is a trademark of Motorola, Inc.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
www.BDTIC.com/maxim
1
Evaluates: MAX1391–MAX1396
General Description
Evaluates: MAX1391–MAX1396
MAX1396 Evaluation Kit
Component List (continued)
DESIGNATION QTY
Recommended Equipment
DESCRIPTION
R11
1
102kΩ ±1% resistor (0603)
R12
1
54.9kΩ ±1% resistor (0603)
R13
1
24kΩ ±1% resistor (0603)
• MAX1396 EV kit (USB cable included)
• MAX1396 evaluation kit software (downloaded
from www.maxim-ic.com)
R14
1
93.1kΩ ±1% resistor (0603)
R15
1
10kΩ ±5% resistor (0603)
U1
1
MAX1396ETB (10-pin TDFN)
U2
1
MAXQ2000-RAX (68-pin QFN-EP)
U3
1
FTDI FT232BL (7mm x 7mm,
32-pin TQFP-L)
U4
1
AT93C46A 3-wire EEPROM (8-pin SO)
U5
1
MAX890LESA (8-pin SO)
INSTALL.EXE
U6
1
MAX8511EXK25-T (5-pin SC70)
Top mark: ADV
MAX1396.EXE
Application program
FTDIBUS.INF
USB device driver file
MAX8512EXK-T (5-pin SC70)
Top mark: ADW
FTDIPORT.INF
VCP device driver file
UNINST.INI
Uninstalls the EV kit
software
TROUBLESHOOTING_USB.PDF
USB driver installation help
file
U7, U8
2
U9
1
MAX3376EEKA-T (8-pin SOT23)
U10
1
MAX3375EEKA-T (8-pin SOT23)
Y1
1
20MHz crystal
Y2
1
6MHz crystal
—
7
Shunts
• Signal source to drive ADC input
• Windows 98 SE/2000/XP-compatible PC
• Available USB port on the PC
MAX1396EVKIT Files
FILE
DESCRIPTION
Installs the EV kit files on
your computer
Procedure
—
1
USB cable
—
1
MAX1396 PC board
—
1
MAX1396 EV kit software CD-ROM
Component Suppliers
SUPPLIER
PHONE
Citizen America
Corporation
949-428-3700
www.citizencrystal.com
TDK
847-803-6100
www.component.tdk.com
WEBSITE
Note: Indicate you are using the MAX1391–MAX1396 when
contacting these manufacturers.
2
_________________________Quick Start
1) Make sure the shunts of all jumpers are in the right
position.
JU1: (1-2) VCC connected to on-board +1.54V
voltage regulator.
JU2: (1-2) CH1/CH2 connected to on-board µC
through a voltage-level translator.
JU3: (1-2) OE connected to on-board µC through a
voltage-level translator.
JU4: (1-2) CS connected to on-board µC through a
voltage-level translator.
JU5: (1-2) SCLK connected to on-board µC through
a voltage-level translator.
JU6: (1-2) DOUT connected to on-board µC
through a voltage-level translator.
JU7: (1-2) Reference voltage connected to VCC.
2) Connect the signal source to the AIN1 pad and the
GND terminal of the signal source to the GND pad.
Connect AIN2 to GND.
3) Set the signal source to +1V.
_______________________________________________________________________________________
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MAX1396 Evaluation Kit
6) Follow the directions of the Add New Hardware
Wizard to install the USB device driver. Choose the
Search for the best driver for your device option.
Specify the location of the device driver to be
C:\Program Files\MAX1396 (default installation
directory) using the Browse button.
7) Start the MAX1396 EV kit software by opening its
icon in the Start menu | Programs | Maxim
MAX1396 Evaluation Kit.
8) Wait until the program automatically detects the
MAX1396 hardware and displays the user-interface
panel (Figure 1).
9) Verify the voltage value of approximately 1V is displayed in the ADC Value Display box.
Figure 1. MAX1396 Evaluation Kit Main Window
_______________________________________________________________________________________
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3
Evaluates: MAX1391–MAX1396
4) Install the MAX1396 evaluation software on your
computer by running the INSTALL.EXE program on
the installation CD-ROM. The program files are
copied and icons are created for them in the
Windows Start menu | Programs | Maxim MAX1396
Evaluation Kit.
5) Connect the USB cable from the PC to the
MAX1396 EV kit. A Building Driver Database window pops up in addition to a New Hardware
Found message. If you do not see a window that is
similar to the one described above after 30 seconds, remove the USB cable from the MAX1396 EV
kit and connect it again. Administrator privileges
are required to install the USB device driver on
Windows 2000 and Windows XP. Refer to the
TROUBLESHOOTING_USB.PDF document included with the software for more information.
Evaluates: MAX1391–MAX1396
MAX1396 Evaluation Kit
Detailed Description
of Software
The evaluation software’s window is shown in Figure 1.
The Device Settings box located at the top of the window contains IC information, mode/channel selection,
and a Reference box. Functions that relate to reading
the ADC values in the ADC Conversion box are located in the middle section. Data logging functions are in
the Data Logging box located at the bottom of the
main window.
Device
The MAX1396 EV kit can be used to evaluate the
MAX1391–MAX1396. Select the appropriate IC device
on the Device menu. The MAX1396 is selected by
default.
Device Settings
Device, Input type, and output data Resolution information are shown in the Device Settings box. The pulldown menu in the Device Settings panel can be either
Channel or Mode depending on whether a 2-channel,
single-ended device or a 1-channel, true-differential
device has been selected in the Device menu.
If a 2-channel, single-ended ADC device (MAX1392,
MAX1394, or MAX1396) has been selected on the
Device menu, Channel 1 and Channel 2 are the selections on the Channel pulldown menu. When Channel 1
is selected, AIN1 becomes the input of the device.
When Channel 2 is selected, AIN2 becomes the input
of the device.
ADC Conversion
The ADC Value Display box shown in the ADC
Conversion box displays the input Channel, output
data Code, and calculated Voltage. The input Channel
that is not selected on the Channel pulldown menu, or
is not applicable to the device selected on the Device
menu, is grayed out in the ADC Value Display box.
Pressing the Convert button in the ADC Conversion
box updates the status of the ADC Value Display box.
Check the Auto Convert checkbox to automatically
read the current ADC value at a rate set by the Time
Interval pulldown menu.
When the Auto Convert checkbox is checked, select
the Alternate Channels checkbox to make the ADC
alternate conversions between AIN1 and AIN2.
Data Logging
The Data Logging box is located at the bottom of the
window. The user can select the desired number of
conversions in the Number of Conversions pulldown
menu. Before sampling, an appropriate sample rate
should be entered into the Sample Rate field. Press the
Start Conversion button in the Data Logging box to
start sampling. After sampling is finished, the user can
save the data to a file by pressing the Save to File button. The Save to File button is not active until the sampling is done.
Detailed Description
of Hardware
MAX1396 EV Kit
If a 1-channel, true-differential ADC device (MAX1391,
MAX1393, or MAX1395) has been selected on the
Device menu, Unipolar or Bipolar mode can be chosen on the Mode pulldown menu to select the proper
output data format.
The MAX1396 EV kit board provides a proven layout for
evaluating the MAX1391–MAX1396. The EV kit comes
with the MAX1396ETB installed. By placing the shunt
on pin 1 and pin 2 of JU1, the MAX1396ETB (U1) is
powered from the USB supply regulated to 1.54V.
Choose On-Board Voltage Reference or External
Voltage Reference in the Reference box. If the actual
reference voltage is not the same as the value in the
edit field, enter the correct voltage value into the edit
field and click on the Set VREF button located on the
right.
See the Detailed Description of Hardware section for
information on changing the voltage reference.
To use the MAX1396 EV kit with a user-supplied SPI
interface, supply voltage, and reference voltage, place
the shunts on pin 2 and pin 3 of JU1 through JU7.
Connect CHSEL, OE, CS, SCLK, DOUT, and GND lines
from the user-supplied interface to the corresponding
pads on the MAX1396 EV kit board. Apply a +1.5V to
+3.6V power supply to the VCC and GND pads. Also
apply a reference voltage to the VREF within the +0.6V
to VCC range.
To evaluate a different IC using the MAX1396 EV kit,
order one of the MAX1391–MAX1395 ICs in a TDFN
package and replace the on-board MAX1396ETB. In
the program, select the corresponding IC in the
Device menu.
4
_______________________________________________________________________________________
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MAX1396 Evaluation Kit
Table 1. External/On-Board Power-Supply
Selection
JU1 SHUNT POSITION
VDD
(MAX1396 POWER-SUPPLY
VOLTAGE INPUT)
1-2*
On-board 1.54V
2-3
External power supply attached to
VCC pad
Table 2. External/On-Board Reference
Input Selection
JU7 SHUNT POSITION
REF
(MAX1396 REFERENCE
VOLTAGE INPUT)
1-2*
Same as VDD
(on-board voltage reference)
2-3
External reference voltage
attached to VREF pad
Evaluates: MAX1391–MAX1396
Power Supply and Voltage Reference
By default, the on-board MAX8512EXK-T, with +1.54V
output voltage, is both the power supply and voltage
reference of the MAX1396. To use the user-supplied
power supply and/or external voltage reference, place
the shunts in the appropriate positions of JU1 and JU7
as shown in Tables 1 and 2. Attach the power supply
and voltage reference to the VCC and VREF pad,
respectively. Adjust the value of the On-Board Voltage
Reference or External Voltage Reference in the program to the actual reference voltage used.
*Default configuration.
*Default configuration.
_______________________________________________________________________________________
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5
GND
VREF
AIN2
AIN1
1
JU7
3
R2
5.1Ω
VCC
2
+5V
R1
5.1Ω
C9
100nF
J1-4
J1-3
J1-2
J1-1
C3
100nF
C2
0.22µF
C1
0.22µF
VCC
GND
N.C.
ORG
VCC
C23
100nF
5
7
6
8
5
2
3
4
1
4
3
2
1
REF
AIN2
AIN1
GND
VDD
R15
10kΩ
D0
D1
SK
CS
U4
AT93C46A
R6
27Ω
SET
DOUT
SCLK
CS
OE
CH1/CH2
R4
2.2kΩ
Y2
6MHz
U1
MAX1396
C8
22pF
C7
22pF
+5V
R5
1.5kΩ
8
7
6
5
9
10
C6
33nF
GND
4
ON
3
FAULT
R7
27Ω
8
XTOUT
XTIN
RESET
RSTOUT
USBDP
USBDM
AVCC
3V3OUT
30
+5V
EEDATA
EESK
31 TEST
2
1
32 EECS
28
27
4
5
7
8
6
R8
470Ω
R10
7.5kΩ
3
2
2
2
2
2
29
GND
SCLK
CS
OE
1
JU6
DOUT
3
1
JU5
3
1
JU4
3
1
JU3
3
1
JU2
CHSEL
3
9
GND
17
+3.5V
C15
100nF
C26
100nF
23
24
DTR
18
19
20
11
12
SLEEP
PWREN
10
15
PWRCTL 14
RXLED
TXLED
TXDEN 16
RI
DCD
DSR
21
CTS 22
RTS
RXD
VCC10
25
TXD
13
C12
100nF
C11
10µF
VCC
26
+5V
U3
FT232BL
C13
100nF
VCC
AGND
C14
100nF
+5V
C10
100nF
4
5
4
5
SHDN
RXD
TXD
3
2
7
C31
100nF
+3.5V
GND
IVL2
OVL1
GND
2
U10
MAX3375E
THREE-STATE VCC
6
VCC
OVL2
U9
MAX3376E
3
VL
TXD
RXD
IVCC2
OVCC2
IVCC1
1
8
1
8
IVCC1
IVCC1
C32
100nF
VCC
VL
THREE-STATE VCC
OVL1
3
C30
100nF
7
6
VCC
2
VCC
GND
C29
100nF
+3.5V
R3
220Ω
LED1
+3.5V
C16
1µF
MISO
SCLK
SS
IVCC1
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
27
51
SHDN
+3.5V
3
IN
+2.5V
SEG10/P1.2
SEG9/P1.1
SEG8/P1.0
C20
100nF
1
2
4
5
2
Y1
20MHz
GND
FB
C4
10pF
49
SEG7/P0.7/INT3
SEG6/P0.6/INT2
SEG5/P0.5/INT1
SEG4/P0.4/INT0
SEG3/PO.3
SEG2/P0.2
SEG1/P0.1
SEGO/P0.0
VADJ
VLCD2
VLCD1
VLCD
P7.1/RX0/INT15
P7.0/TX0/INT14
C21
100nF
C18
1µF
1
SEG11/P1.3
C28
1µF
C17
1µF
VDDI0
OUT
50
48
R12
54.9kΩ
TP1
+3.5V
R11
102kΩ
C5
10pF
SEG12/P1.4
U7
MAX8512
3
4
5
47
TP2
C24
1µF
C19
1µF
6
46
+5V
HFXOUT
SEG13/P1.5
+5V
HFXIN
VDD
J1
USB
R9
100kΩ
+2.5V
P6.5/T0/WKOUT1
SEG14/P1.6
5
P6.4/T0B/WKOUT0
SEG15/P1.7
OUT
P6.3/T2/OW_IN
SEG16/P2.0
U6
MAX8511
7
45
3
1
P6.2/T2B/OW_OUT
SEG17/P2.1
IN
8
44
SHDN
IN
43
2
4
5
41
GND
FB
OUT
U8
MAX8512
40
9
10
11
U2
MAXQ2000-RAX
P6.1/T1/INT13
SEG18/P2.2
1
39
R14
93.1kΩ
R13
24kΩ
+1.54V
38
12
13
JU1
37
C25
1µF
P5.6/SCLK
SEG21/P2.5
+5V
36
34
C22
10µF
VCC
2
3
1
VCC
14
15
16
17
SEG27/P3.3
L1
P6.0/T1B/INT12
SEG19/P2.3
SCLK
P5.5/MOSI
SEG22/P2.6
MISO
P5.7/MISO
SEG20/P2.4
SS
P5.4/SS
SEG23/P2.7
7
OUT
6
OUT
P5.3/TX1/INT11
SEG24/P3.0
U5
MAX890
P5.2/RX1/INT10
SEG25/P3.1
IN
2
IN
32KIN
SEG26/P3.2
1
35
28
RESET
SEG32
SEG33/C0M3
SEG34/C0M2
SEG35/C0M1
C0M0
P4.0/TCK/INT8
P4.1/TDI/INT9
P4.2/TMS
P4.3/TD0
SEG28/P3.4/INT4
SEG29/P3.5/INT5
SEG30/P3.6/INT6
SEG31/P3.7/INT7
32KOUT
GND
6
42
GND
C27
1µF
18
19
20
21
22
23
24
25
26
29
30
31
32
33
J2-8
J2-2
J2-10
J2-5
J2-9
J2-1
J2-7
J2-4
J2-3
J2-6
J2
JTAG
+3.5V
Evaluates: MAX1391–MAX1396
MAX1396 Evaluation Kit
Figure 2. MAX1396 EV Kit Schematic
_______________________________________________________________________________________
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MAX1396 Evaluation Kit
Evaluates: MAX1391–MAX1396
Figure 3. MAX1396 EV Kit Component Placement Guide—Component Side
Figure 4. MAX1396 EV Kit PC Board Layout—Component Side
_______________________________________________________________________________________
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7
Evaluates: MAX1391–MAX1396
MAX1396 Evaluation Kit
Figure 5. MAX1396 EV Kit PC Board Layout—Solder Side
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2006 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products, Inc.
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